Pro tip: For a more accurate shape, cut on the outside of the line, then clean up to the line using a sander with 150-grit sandpaper. Psst—do you know what a northern house wren looks like?

Vocal and plumage variation in the Bewick’s wren is extensive, but all adults have a very long tail, tipped in white and flicked side to side. Eastern populations have disappeared from much of ...